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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_3a90233651aeb6de4309a51b31e57ac6.html">omp</a></li>  </ul>
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<div class="title">omp/pipeline.h</div>  </div>
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<a href="omp_2pipeline_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;</div><div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#ifndef GRPPI_OMP_PIPELINE_H</span></div><div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#define GRPPI_OMP_PIPELINE_H</span></div><div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160;</div><div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="preprocessor">#ifdef GRPPI_OMP</span></div><div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;</div><div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;<span class="preprocessor">#include &quot;<a class="code" href="parallel__execution__omp_8h.html">parallel_execution_omp.h</a>&quot;</span></div><div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;</div><div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#include &lt;experimental/optional&gt;</span></div><div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;</div><div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespacegrppi.html">grppi</a> {</div><div class="line"><a name="l00031"></a><span class="lineno">   31</span>&#160;</div><div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;<span class="comment">//Last stage</span></div><div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> InQueue, <span class="keyword">typename</span> Consumer&gt;</div><div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="namespacegrppi.html#abcd00f76d9fbf0d30d02a7073b5d56f2">   34</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00035"></a><span class="lineno">   35</span>&#160;                   Consumer &amp;&amp; consume_op)</div><div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;{</div><div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;  <span class="keyword">using</span> gen_value_type = <span class="keyword">typename</span> InQueue::value_type;</div><div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;</div><div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160;  <span class="keywordflow">if</span> (ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a56aa718f05d304ab46d1262f374fa934">is_ordered</a>()){</div><div class="line"><a name="l00041"></a><span class="lineno">   41</span>&#160;    vector&lt;gen_value_type&gt; elements;</div><div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;    <span class="keywordtype">long</span> current = 0;</div><div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;    <span class="keyword">auto</span> item = input_queue.pop( );</div><div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;    <span class="keywordflow">while</span> (item.first) {</div><div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;      <span class="keywordflow">if</span> (current == item.second) {</div><div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160;        consume_op(*item.first);</div><div class="line"><a name="l00047"></a><span class="lineno">   47</span>&#160;        current ++;</div><div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;      } </div><div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;      <span class="keywordflow">else</span> {</div><div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;        elements.push_back(item);</div><div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;      }</div><div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;      <span class="keywordflow">for</span> (<span class="keyword">auto</span> it=elements.begin(); it!=elements.end(); it++) {</div><div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;        <span class="keywordflow">if</span> (it-&gt;second == current) {</div><div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160;          consume_op(*it-&gt;first);</div><div class="line"><a name="l00055"></a><span class="lineno">   55</span>&#160;              elements.erase(it);</div><div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;              current++;</div><div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;              <span class="keywordflow">break</span>;</div><div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;           }</div><div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;        }</div><div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;       item = input_queue.pop( );</div><div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;      }</div><div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160;      <span class="keywordflow">while</span>(elements.size()&gt;0){</div><div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;        <span class="keywordflow">for</span>(<span class="keyword">auto</span> it = elements.begin(); it != elements.end(); it++){</div><div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;          <span class="keywordflow">if</span>(it-&gt;second == current) {</div><div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160;            consume_op(*it-&gt;first);</div><div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;            elements.erase(it);</div><div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            current++;</div><div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160;            <span class="keywordflow">break</span>;</div><div class="line"><a name="l00069"></a><span class="lineno">   69</span>&#160;          }</div><div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;        }</div><div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;      }</div><div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;    }</div><div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;    <span class="keywordflow">else</span> {</div><div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;      <span class="keyword">auto</span> item = input_queue.pop();</div><div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;      <span class="keywordflow">while</span> (item.first) {</div><div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;        consume_op(*item.first);</div><div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;        item = input_queue.pop();</div><div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;     }</div><div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;   }</div><div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;   <span class="comment">//End task</span></div><div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160;}</div><div class="line"><a name="l00082"></a><span class="lineno">   82</span>&#160;</div><div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;</div><div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;<span class="comment">//Reduction composition</span></div><div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity, <span class="keyword">typename</span> InQueue, <span class="keyword">typename</span> ...MoreTransformers&gt;</div><div class="line"><a name="l00086"></a><span class="lineno"><a class="line" href="namespacegrppi.html#adba861084c275142a857dd59a8f41788">   86</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue,</div><div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                   <a class="code" href="classgrppi_1_1reduction__info.html">reduction_info&lt;parallel_execution_omp, Combiner, Identity&gt;</a> &amp; reduction_obj, MoreTransformers ...more_transform_ops)</div><div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;{</div><div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;  <span class="keyword">using</span> reduction_type =</div><div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;      <a class="code" href="classgrppi_1_1reduction__info.html">reduction_info&lt;parallel_execution_omp,Combiner,Identity&gt;</a>;</div><div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;</div><div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, input_queue, std::forward&lt;reduction_type&amp;&amp;&gt;(reduction_obj), std::forward&lt;MoreTransformers...&gt;(more_transform_ops...));</div><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;}</div><div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;</div><div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity, <span class="keyword">typename</span> InQueue, <span class="keyword">typename</span> ...MoreTransformers&gt;</div><div class="line"><a name="l00096"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a15d99c66e4fd1e36d6c681e73506279d">   96</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue,</div><div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;                   <a class="code" href="classgrppi_1_1reduction__info.html">reduction_info&lt;parallel_execution_omp, Combiner, Identity&gt;</a> &amp;&amp; reduction_obj, MoreTransformers ...more_transform_ops)</div><div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;{</div><div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;  <span class="keyword">using</span> reduction_type =</div><div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;      <a class="code" href="classgrppi_1_1reduction__info.html">reduction_info&lt;parallel_execution_omp,Combiner,Identity&gt;</a>;</div><div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160;  <a class="code" href="namespacegrppi.html#a73e2c34e989166559e6e65b7a2bf100d">pipeline_impl_ordered</a>(ex, input_queue, std::forward&lt;reduction_type&gt;(reduction_obj), std::forward&lt;MoreTransformers...&gt;(more_transform_ops...));</div><div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;}</div><div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;</div><div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Combiner, <span class="keyword">typename</span> Identity, <span class="keyword">typename</span> InQueue, <span class="keyword">typename</span> ...MoreTransformers&gt;</div><div class="line"><a name="l00105"></a><span class="lineno"><a class="line" href="namespacegrppi.html#acfc41fddf351bd25243bdebd2d954797">  105</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#a73e2c34e989166559e6e65b7a2bf100d">pipeline_impl_ordered</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue,</div><div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                   <a class="code" href="classgrppi_1_1reduction__info.html">reduction_info&lt;parallel_execution_omp,Combiner,Identity&gt;</a> &amp;&amp; reduction_obj, MoreTransformers ...more_transform_ops)</div><div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;{</div><div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;  <span class="keyword">using namespace </span>std::experimental;</div><div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;  <span class="keyword">using</span> gen_value_type = <span class="keyword">typename</span> InQueue::value_type;</div><div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;  <span class="keyword">using</span> input_value_type = <span class="keyword">typename</span> gen_value_type::first_type::value_type;</div><div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;</div><div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160;  <span class="keyword">using</span> result_value_type = <span class="keyword">typename</span> result_of&lt;Combiner(input_value_type, input_value_type)&gt;::type;</div><div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;  <span class="keyword">using</span> result_type = pair&lt;optional&lt;result_value_type&gt;, <span class="keywordtype">long</span>&gt;;</div><div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;</div><div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;  <span class="keyword">auto</span> output_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;result_type&gt;();</div><div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;</div><div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;<span class="preprocessor">  #pragma omp task shared(output_queue, input_queue, reduction_obj)</span></div><div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;  {</div><div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;    vector&lt;input_value_type&gt; values;</div><div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;    <span class="keywordtype">long</span> out_order=0;</div><div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;    <span class="keyword">auto</span> item {input_queue.pop()};</div><div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;    <span class="keywordflow">for</span>(;;){</div><div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;      <span class="keywordflow">while</span> (item.first &amp;&amp; values.size() != reduction_obj.window_size) {</div><div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;        values.push_back(*item.first);</div><div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;        item = input_queue.pop();</div><div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;      }</div><div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;      <span class="keywordflow">if</span> (values.size() &gt; 0) {</div><div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;        <span class="keyword">auto</span> reduced_value = <a class="code" href="group__reduce__pattern__native.html#gad3a9dc3cdb2b5165d1cc201eb0da4383">reduce</a>(reduction_obj.exectype, values.begin(), values.end(), reduction_obj.identity,</div><div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;            std::forward&lt;Combiner&gt;(reduction_obj.combine_op));</div><div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;        output_queue.push({{reduced_value}, out_order});</div><div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;        out_order++;</div><div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;        <span class="keywordflow">if</span> (item.first) {</div><div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;          <span class="keywordflow">if</span> (reduction_obj.offset &lt;= reduction_obj.window_size) {</div><div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;            values.erase(values.begin(), values.begin() + reduction_obj.offset);</div><div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;          }</div><div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;          <span class="keywordflow">else</span> {</div><div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;            values.erase(values.begin(), values.end());</div><div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            <span class="keyword">auto</span> diff = reduction_obj.offset - reduction_obj.window_size;</div><div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            <span class="keywordflow">while</span> (diff &gt; 0 &amp;&amp; item.first) {</div><div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;              item = input_queue.pop();</div><div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;              diff--;</div><div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;            }</div><div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;          }</div><div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;        }</div><div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;      }</div><div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;      <span class="keywordflow">if</span> (!item.first) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;    }</div><div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;    output_queue.push({{},-1});</div><div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;  }</div><div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;</div><div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, output_queue, forward&lt;MoreTransformers&gt;(more_transform_ops) ... );</div><div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;<span class="preprocessor">  #pragma omp taskwait</span></div><div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;}</div><div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;</div><div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160;</div><div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;</div><div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;</div><div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue, <span class="keyword">typename</span>... MoreTransformers&gt;</div><div class="line"><a name="l00160"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a6c58bb150d28594ae3d5790f09552d86">  160</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;                   <a class="code" href="classgrppi_1_1filter__info.html">filter_info&lt;parallel_execution_omp,Transformer&gt;</a> &amp; filter_obj, </div><div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;                   MoreTransformers &amp;&amp; ... more_transform_ops) </div><div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;{</div><div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;  <span class="keyword">using</span> filter_type = <a class="code" href="classgrppi_1_1filter__info.html">filter_info&lt;parallel_execution_omp, Transformer&gt;</a>;</div><div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;</div><div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex,input_queue, std::forward&lt;filter_type&gt;(filter_obj), </div><div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;      std::forward&lt;MoreTransformers&gt;(more_transform_ops)...) ;</div><div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;}</div><div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;</div><div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue,</div><div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;          <span class="keyword">typename</span>... MoreTransformers&gt;</div><div class="line"><a name="l00172"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a8e1eb7737dc0d4ced3640a397248b9fd">  172</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#a73e2c34e989166559e6e65b7a2bf100d">pipeline_impl_ordered</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, </div><div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;                           InQueue &amp; input_queue, </div><div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                           <a class="code" href="classgrppi_1_1filter__info.html">filter_info&lt;parallel_execution_omp,Transformer&gt;</a> &amp;&amp; filter_obj, </div><div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;                           MoreTransformers &amp;&amp; ... more_transform_ops)</div><div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;{</div><div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;  <span class="keyword">using</span> gen_value_type = <span class="keyword">typename</span> InQueue::value_type;</div><div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;  <span class="keyword">using</span> input_value_type = <span class="keyword">typename</span> gen_value_type::first_type;</div><div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;  <span class="keyword">auto</span> tmp_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;gen_value_type&gt;();</div><div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;</div><div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;  atomic&lt;int&gt; done_threads{0};</div><div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;  <span class="keywordflow">for</span>(<span class="keywordtype">int</span> th = 0; th&lt;filter_obj.exectype.concurrency_degree(); th++) {</div><div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;<span class="preprocessor">    #pragma omp task shared(tmp_queue,filter_obj,input_queue,done_threads)</span></div><div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;    {</div><div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;      <span class="keyword">auto</span> item{input_queue.pop()};</div><div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160;      <span class="keywordflow">while</span> (item.first) {</div><div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;        <span class="keywordflow">if</span>(filter_obj.task(*item.first)) {</div><div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;          tmp_queue.push(item);</div><div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;        }</div><div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;        <span class="keywordflow">else</span> {</div><div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;          tmp_queue.push(make_pair(input_value_type{} ,item.second));</div><div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;        }</div><div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;        item = input_queue.pop();</div><div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160;      }</div><div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;      done_threads++;</div><div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;      <span class="keywordflow">if</span> (done_threads==filter_obj.exectype.concurrency_degree()) {</div><div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;        tmp_queue.push (make_pair(input_value_type{}, -1));</div><div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;      }</div><div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;      <span class="keywordflow">else</span> {</div><div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;        input_queue.push(item);</div><div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;      }</div><div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;    }</div><div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;  }</div><div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;</div><div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;  <span class="keyword">auto</span> output_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;gen_value_type&gt;();</div><div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;<span class="preprocessor">  #pragma omp task shared (output_queue,tmp_queue)</span></div><div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;  {</div><div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    vector&lt;gen_value_type&gt; elements;</div><div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;    <span class="keywordtype">int</span> current = 0;</div><div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160;    <span class="keywordtype">long</span> order = 0;</div><div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;    <span class="keyword">auto</span> item = tmp_queue.pop();</div><div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;    <span class="keywordflow">for</span> (;;) {</div><div class="line"><a name="l00214"></a><span class="lineno">  214</span>&#160;      <span class="keywordflow">if</span> (!item.first &amp;&amp; item.second == -1) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00215"></a><span class="lineno">  215</span>&#160;      <span class="keywordflow">if</span> (item.second == current) {</div><div class="line"><a name="l00216"></a><span class="lineno">  216</span>&#160;        <span class="keywordflow">if</span> (item.first) {</div><div class="line"><a name="l00217"></a><span class="lineno">  217</span>&#160;          output_queue.push(make_pair(item.first, order++));</div><div class="line"><a name="l00218"></a><span class="lineno">  218</span>&#160;        }</div><div class="line"><a name="l00219"></a><span class="lineno">  219</span>&#160;        current++;</div><div class="line"><a name="l00220"></a><span class="lineno">  220</span>&#160;      }</div><div class="line"><a name="l00221"></a><span class="lineno">  221</span>&#160;      <span class="keywordflow">else</span> {</div><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;        elements.push_back(item);</div><div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;      }</div><div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160;      <span class="keywordflow">for</span> (<span class="keyword">auto</span> it=elements.begin(); it&lt;elements.end(); it++) {</div><div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;        <span class="keywordflow">if</span> ((*it).second==current) {</div><div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;          <span class="keywordflow">if</span>((*it).first){</div><div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;            output_queue.push(make_pair((*it).first,order++));</div><div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;          }</div><div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;          elements.erase(it);</div><div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;          current++;</div><div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160;          <span class="keywordflow">break</span>;</div><div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;        }</div><div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;      }</div><div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;      item = tmp_queue.pop();</div><div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;    }</div><div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160;    <span class="keywordflow">while</span> (elements.size()&gt;0) {</div><div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;      <span class="keywordflow">for</span> (<span class="keyword">auto</span> it=elements.begin(); it&lt;elements.end(); it++) {</div><div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;        <span class="keywordflow">if</span> ((*it).second == current) {</div><div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;          <span class="keywordflow">if</span>((*it).first) {</div><div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            output_queue.push(make_pair((*it).first,order++));</div><div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;          }</div><div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160;          elements.erase(it);</div><div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;          current++;</div><div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;          <span class="keywordflow">break</span>;</div><div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;        }</div><div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;      }</div><div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;    }</div><div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;    output_queue.push(item);</div><div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;  }</div><div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, output_queue, </div><div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160;      forward&lt;MoreTransformers&gt;(more_transform_ops)...);</div><div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;<span class="preprocessor">  #pragma omp taskwait</span></div><div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;}</div><div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;</div><div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue,<span class="keyword">typename</span>... MoreTransformers&gt;</div><div class="line"><a name="l00256"></a><span class="lineno"><a class="line" href="namespacegrppi.html#a403a75ca5102d8fc3f41874dec3f1ff1">  256</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#a4a3adea4a352869567cc47b78cd96a46">pipeline_impl_unordered</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160;                             <a class="code" href="classgrppi_1_1filter__info.html">filter_info&lt;parallel_execution_omp, Transformer&gt;</a> &amp;&amp; farm_obj, </div><div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;                             MoreTransformers &amp;&amp; ... more_transform_ops)</div><div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;{</div><div class="line"><a name="l00260"></a><span class="lineno">  260</span>&#160;  <span class="keyword">using</span> gen_value_type = <span class="keyword">typename</span> InQueue::value_type;</div><div class="line"><a name="l00261"></a><span class="lineno">  261</span>&#160;  <span class="keyword">using</span> input_value_type = <span class="keyword">typename</span> gen_value_type::first_type;</div><div class="line"><a name="l00262"></a><span class="lineno">  262</span>&#160;  <span class="keyword">auto</span> output_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;gen_value_type&gt;();</div><div class="line"><a name="l00263"></a><span class="lineno">  263</span>&#160;</div><div class="line"><a name="l00264"></a><span class="lineno">  264</span>&#160;  std::atomic&lt;int&gt; done_threads{0};</div><div class="line"><a name="l00265"></a><span class="lineno">  265</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> th=0; th&lt;farm_obj.exectype.concurrency_degree(); th++) {</div><div class="line"><a name="l00266"></a><span class="lineno">  266</span>&#160;<span class="preprocessor">    #pragma omp task shared(output_queue,farm_obj,input_queue,done_threads)</span></div><div class="line"><a name="l00267"></a><span class="lineno">  267</span>&#160;    {</div><div class="line"><a name="l00268"></a><span class="lineno">  268</span>&#160;      <span class="keyword">auto</span> item = input_queue.pop( ) ;</div><div class="line"><a name="l00269"></a><span class="lineno">  269</span>&#160;      <span class="keywordflow">while</span> (item.first) {</div><div class="line"><a name="l00270"></a><span class="lineno">  270</span>&#160;        <span class="keywordflow">if</span> (farm_obj.task(*item.first)) {</div><div class="line"><a name="l00271"></a><span class="lineno">  271</span>&#160;          output_queue.push(item);</div><div class="line"><a name="l00272"></a><span class="lineno">  272</span>&#160;        }</div><div class="line"><a name="l00273"></a><span class="lineno">  273</span>&#160;        item = input_queue.pop();</div><div class="line"><a name="l00274"></a><span class="lineno">  274</span>&#160;      }</div><div class="line"><a name="l00275"></a><span class="lineno">  275</span>&#160;      done_threads++;</div><div class="line"><a name="l00276"></a><span class="lineno">  276</span>&#160;      <span class="keywordflow">if</span> (done_threads==farm_obj.exectype.concurrency_degree()) {</div><div class="line"><a name="l00277"></a><span class="lineno">  277</span>&#160;        output_queue.push(make_pair(input_value_type{}, -1));</div><div class="line"><a name="l00278"></a><span class="lineno">  278</span>&#160;      }</div><div class="line"><a name="l00279"></a><span class="lineno">  279</span>&#160;      <span class="keywordflow">else</span> {</div><div class="line"><a name="l00280"></a><span class="lineno">  280</span>&#160;        input_queue.push(item);</div><div class="line"><a name="l00281"></a><span class="lineno">  281</span>&#160;      }</div><div class="line"><a name="l00282"></a><span class="lineno">  282</span>&#160;    }</div><div class="line"><a name="l00283"></a><span class="lineno">  283</span>&#160;  }</div><div class="line"><a name="l00284"></a><span class="lineno">  284</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, output_queue, </div><div class="line"><a name="l00285"></a><span class="lineno">  285</span>&#160;      std::forward&lt;MoreTransformers&gt;(more_transform_ops)...);</div><div class="line"><a name="l00286"></a><span class="lineno">  286</span>&#160;<span class="preprocessor">  #pragma omp taskwait</span></div><div class="line"><a name="l00287"></a><span class="lineno">  287</span>&#160;}</div><div class="line"><a name="l00288"></a><span class="lineno">  288</span>&#160;</div><div class="line"><a name="l00289"></a><span class="lineno">  289</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue,<span class="keyword">typename</span>... MoreTransformers&gt;</div><div class="line"><a name="l00290"></a><span class="lineno"><a class="line" href="namespacegrppi.html#aab93eac9110547660f5e062e3bbbb7cb">  290</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00291"></a><span class="lineno">  291</span>&#160;                   <a class="code" href="classgrppi_1_1filter__info.html">filter_info&lt;parallel_execution_omp, Transformer&gt;</a> &amp;&amp; filter_obj, </div><div class="line"><a name="l00292"></a><span class="lineno">  292</span>&#160;                   MoreTransformers &amp;&amp; ... more_transform_ops) </div><div class="line"><a name="l00293"></a><span class="lineno">  293</span>&#160;{</div><div class="line"><a name="l00294"></a><span class="lineno">  294</span>&#160;  <span class="keyword">using</span> filter_type = <a class="code" href="classgrppi_1_1filter__info.html">filter_info&lt;parallel_execution_omp, Transformer&gt;</a>;</div><div class="line"><a name="l00295"></a><span class="lineno">  295</span>&#160;</div><div class="line"><a name="l00296"></a><span class="lineno">  296</span>&#160;  <span class="keywordflow">if</span> (ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a56aa718f05d304ab46d1262f374fa934">is_ordered</a>()) {</div><div class="line"><a name="l00297"></a><span class="lineno">  297</span>&#160;    <a class="code" href="namespacegrppi.html#a73e2c34e989166559e6e65b7a2bf100d">pipeline_impl_ordered</a>(ex, input_queue, </div><div class="line"><a name="l00298"></a><span class="lineno">  298</span>&#160;        std::forward&lt;filter_type&gt;(filter_obj),</div><div class="line"><a name="l00299"></a><span class="lineno">  299</span>&#160;        std::forward&lt;MoreTransformers&gt;(more_transform_ops)...);</div><div class="line"><a name="l00300"></a><span class="lineno">  300</span>&#160;  }</div><div class="line"><a name="l00301"></a><span class="lineno">  301</span>&#160;  <span class="keywordflow">else</span> {</div><div class="line"><a name="l00302"></a><span class="lineno">  302</span>&#160;    <a class="code" href="namespacegrppi.html#a4a3adea4a352869567cc47b78cd96a46">pipeline_impl_unordered</a>(ex, input_queue,</div><div class="line"><a name="l00303"></a><span class="lineno">  303</span>&#160;        std::forward&lt;filter_type&gt;(filter_obj),</div><div class="line"><a name="l00304"></a><span class="lineno">  304</span>&#160;        std::forward&lt;MoreTransformers&gt;(more_transform_ops)...);</div><div class="line"><a name="l00305"></a><span class="lineno">  305</span>&#160;  }</div><div class="line"><a name="l00306"></a><span class="lineno">  306</span>&#160;}</div><div class="line"><a name="l00307"></a><span class="lineno">  307</span>&#160;</div><div class="line"><a name="l00308"></a><span class="lineno">  308</span>&#160;</div><div class="line"><a name="l00309"></a><span class="lineno">  309</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue,<span class="keyword">typename</span>... MoreTransformers&gt;</div><div class="line"><a name="l00310"></a><span class="lineno"><a class="line" href="namespacegrppi.html#aa3e582508248a1fed3cad84b9878dd87">  310</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00311"></a><span class="lineno">  311</span>&#160;                   <a class="code" href="classgrppi_1_1farm__info.html">farm_info&lt;parallel_execution_omp, Transformer&gt;</a> &amp; farm_obj, </div><div class="line"><a name="l00312"></a><span class="lineno">  312</span>&#160;                   MoreTransformers &amp;&amp; ... more_transform_ops) </div><div class="line"><a name="l00313"></a><span class="lineno">  313</span>&#160;{</div><div class="line"><a name="l00314"></a><span class="lineno">  314</span>&#160;  <span class="keyword">using</span> farm_type = <a class="code" href="classgrppi_1_1farm__info.html">farm_info&lt;parallel_execution_omp,Transformer&gt;</a>;</div><div class="line"><a name="l00315"></a><span class="lineno">  315</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, input_queue, std::forward&lt;farm_type&gt;(farm_obj), </div><div class="line"><a name="l00316"></a><span class="lineno">  316</span>&#160;      std::forward&lt;MoreTransformers&gt;(more_transform_ops)...) ;</div><div class="line"><a name="l00317"></a><span class="lineno">  317</span>&#160;}</div><div class="line"><a name="l00318"></a><span class="lineno">  318</span>&#160;</div><div class="line"><a name="l00319"></a><span class="lineno">  319</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue,<span class="keyword">typename</span>... MoreTransformers&gt;</div><div class="line"><a name="l00320"></a><span class="lineno"><a class="line" href="namespacegrppi.html#afbb392c9c43ff1d8274fd8ac2988429f">  320</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00321"></a><span class="lineno">  321</span>&#160;                   <a class="code" href="classgrppi_1_1farm__info.html">farm_info&lt;parallel_execution_omp, Transformer&gt;</a> &amp;&amp; farm_obj, </div><div class="line"><a name="l00322"></a><span class="lineno">  322</span>&#160;                   MoreTransformers &amp;&amp; ... sgs ) </div><div class="line"><a name="l00323"></a><span class="lineno">  323</span>&#160;{</div><div class="line"><a name="l00324"></a><span class="lineno">  324</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00325"></a><span class="lineno">  325</span>&#160;  <span class="keyword">using</span> gen_value_type = <span class="keyword">typename</span> InQueue::value_type;</div><div class="line"><a name="l00326"></a><span class="lineno">  326</span>&#160;  <span class="keyword">using</span> input_value_type = <span class="keyword">typename</span> gen_value_type::first_type::value_type;</div><div class="line"><a name="l00327"></a><span class="lineno">  327</span>&#160;  <span class="keyword">using</span> result_type = <span class="keyword">typename</span> result_of&lt;Transformer(input_value_type)&gt;::type;</div><div class="line"><a name="l00328"></a><span class="lineno">  328</span>&#160;  <span class="keyword">using</span> output_value_type = experimental::optional&lt;result_type&gt;;</div><div class="line"><a name="l00329"></a><span class="lineno">  329</span>&#160;  <span class="keyword">using</span> output_type = pair&lt;output_value_type,long&gt;;</div><div class="line"><a name="l00330"></a><span class="lineno">  330</span>&#160; </div><div class="line"><a name="l00331"></a><span class="lineno">  331</span>&#160;  <span class="keyword">auto</span> output_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;output_type&gt;();</div><div class="line"><a name="l00332"></a><span class="lineno">  332</span>&#160;  atomic&lt;int&gt; done_threads{0};</div><div class="line"><a name="l00333"></a><span class="lineno">  333</span>&#160;  <span class="keywordflow">for</span> (<span class="keywordtype">int</span> th=0; th&lt;farm_obj.exectype.concurrency_degree(); th++) {</div><div class="line"><a name="l00334"></a><span class="lineno">  334</span>&#160;<span class="preprocessor">    #pragma omp task shared(done_threads,output_queue,farm_obj,input_queue)</span></div><div class="line"><a name="l00335"></a><span class="lineno">  335</span>&#160;    {</div><div class="line"><a name="l00336"></a><span class="lineno">  336</span>&#160;      <span class="keyword">auto</span> item = input_queue.pop();</div><div class="line"><a name="l00337"></a><span class="lineno">  337</span>&#160;      <span class="keywordflow">while</span> (item.first) {</div><div class="line"><a name="l00338"></a><span class="lineno">  338</span>&#160;        <span class="keyword">auto</span> out = output_value_type{farm_obj.task(*item.first)};</div><div class="line"><a name="l00339"></a><span class="lineno">  339</span>&#160;        output_queue.push(make_pair(out,item.second));</div><div class="line"><a name="l00340"></a><span class="lineno">  340</span>&#160;        item = input_queue.pop();</div><div class="line"><a name="l00341"></a><span class="lineno">  341</span>&#160;      }</div><div class="line"><a name="l00342"></a><span class="lineno">  342</span>&#160;      input_queue.push(item);</div><div class="line"><a name="l00343"></a><span class="lineno">  343</span>&#160;      done_threads++;</div><div class="line"><a name="l00344"></a><span class="lineno">  344</span>&#160;      <span class="keywordflow">if</span> (done_threads==farm_obj.exectype.concurrency_degree()) {</div><div class="line"><a name="l00345"></a><span class="lineno">  345</span>&#160;        output_queue.push(make_pair(output_value_type{}, -1));</div><div class="line"><a name="l00346"></a><span class="lineno">  346</span>&#160;      }</div><div class="line"><a name="l00347"></a><span class="lineno">  347</span>&#160;    }              </div><div class="line"><a name="l00348"></a><span class="lineno">  348</span>&#160;  }</div><div class="line"><a name="l00349"></a><span class="lineno">  349</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, output_queue, forward&lt;MoreTransformers&gt;(sgs) ... );</div><div class="line"><a name="l00350"></a><span class="lineno">  350</span>&#160;<span class="preprocessor">  #pragma omp taskwait</span></div><div class="line"><a name="l00351"></a><span class="lineno">  351</span>&#160;}</div><div class="line"><a name="l00352"></a><span class="lineno">  352</span>&#160;</div><div class="line"><a name="l00353"></a><span class="lineno">  353</span>&#160;<span class="comment">//Intermediate stages</span></div><div class="line"><a name="l00354"></a><span class="lineno">  354</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Transformer, <span class="keyword">typename</span> InQueue,<span class="keyword">typename</span> ... MoreTransformers&gt;</div><div class="line"><a name="l00355"></a><span class="lineno"><a class="line" href="namespacegrppi.html#aeab99913eca2fdb81c153a697d9be850">  355</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, InQueue &amp; input_queue, </div><div class="line"><a name="l00356"></a><span class="lineno">  356</span>&#160;                   Transformer &amp;&amp; transform_op, </div><div class="line"><a name="l00357"></a><span class="lineno">  357</span>&#160;                   MoreTransformers &amp;&amp; ... more_transform_ops) </div><div class="line"><a name="l00358"></a><span class="lineno">  358</span>&#160;{</div><div class="line"><a name="l00359"></a><span class="lineno">  359</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00360"></a><span class="lineno">  360</span>&#160;  <span class="keyword">using</span> gen_value_type = <span class="keyword">typename</span> InQueue::value_type;</div><div class="line"><a name="l00361"></a><span class="lineno">  361</span>&#160;  <span class="keyword">using</span> input_value_type = <span class="keyword">typename</span> gen_value_type::first_type::value_type;</div><div class="line"><a name="l00362"></a><span class="lineno">  362</span>&#160;  <span class="keyword">using</span> result_type = <span class="keyword">typename</span> result_of&lt;Transformer(input_value_type)&gt;::type;</div><div class="line"><a name="l00363"></a><span class="lineno">  363</span>&#160;  <span class="keyword">using</span> output_value_type = experimental::optional&lt;result_type&gt;;</div><div class="line"><a name="l00364"></a><span class="lineno">  364</span>&#160;  <span class="keyword">using</span> output_type = pair&lt;output_value_type,long&gt;;</div><div class="line"><a name="l00365"></a><span class="lineno">  365</span>&#160;  <span class="keyword">auto</span> output_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;output_type&gt;();</div><div class="line"><a name="l00366"></a><span class="lineno">  366</span>&#160;</div><div class="line"><a name="l00367"></a><span class="lineno">  367</span>&#160;  <span class="comment">//Start task</span></div><div class="line"><a name="l00368"></a><span class="lineno">  368</span>&#160;<span class="preprocessor">  #pragma omp task shared(transform_op, input_queue, output_queue)</span></div><div class="line"><a name="l00369"></a><span class="lineno">  369</span>&#160;  {</div><div class="line"><a name="l00370"></a><span class="lineno">  370</span>&#160;    <span class="keyword">auto</span> item = input_queue.pop(); </div><div class="line"><a name="l00371"></a><span class="lineno">  371</span>&#160;    <span class="keywordflow">while</span> (item.first) {</div><div class="line"><a name="l00372"></a><span class="lineno">  372</span>&#160;      <span class="keyword">auto</span> out = output_value_type{transform_op(*item.first)};</div><div class="line"><a name="l00373"></a><span class="lineno">  373</span>&#160;      output_queue.push(make_pair(out, item.second));</div><div class="line"><a name="l00374"></a><span class="lineno">  374</span>&#160;      item = input_queue.pop() ;</div><div class="line"><a name="l00375"></a><span class="lineno">  375</span>&#160;    }</div><div class="line"><a name="l00376"></a><span class="lineno">  376</span>&#160;    output_queue.push(make_pair(output_value_type{}, -1));</div><div class="line"><a name="l00377"></a><span class="lineno">  377</span>&#160;  }</div><div class="line"><a name="l00378"></a><span class="lineno">  378</span>&#160;  <span class="comment">//End task</span></div><div class="line"><a name="l00379"></a><span class="lineno">  379</span>&#160;</div><div class="line"><a name="l00380"></a><span class="lineno">  380</span>&#160;  <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, output_queue, </div><div class="line"><a name="l00381"></a><span class="lineno">  381</span>&#160;      forward&lt;MoreTransformers&gt;(more_transform_ops)...);</div><div class="line"><a name="l00382"></a><span class="lineno">  382</span>&#160;}</div><div class="line"><a name="l00383"></a><span class="lineno">  383</span>&#160;</div><div class="line"><a name="l00402"></a><span class="lineno">  402</span>&#160;<span class="keyword">template</span> &lt;<span class="keyword">typename</span> Generator, <span class="keyword">typename</span> ... Transformers,</div><div class="line"><a name="l00403"></a><span class="lineno">  403</span>&#160;          <a class="code" href="namespacegrppi.html#aecef6e7d3973be5c5678422b30dba5ce">requires_no_arguments&lt;Generator&gt;</a> = 0&gt;</div><div class="line"><a name="l00404"></a><span class="lineno"><a class="line" href="group__pipeline__pattern__omp.html#gae9ff4cf630b3bcd9e830b3afe0b50509">  404</a></span>&#160;<span class="keywordtype">void</span> <a class="code" href="group__pipeline__pattern__native.html#ga50396cad2879f1facd37757ea3aa564b">pipeline</a>(<a class="code" href="classgrppi_1_1parallel__execution__omp.html">parallel_execution_omp</a> &amp; ex, Generator &amp;&amp; generate_op, </div><div class="line"><a name="l00405"></a><span class="lineno">  405</span>&#160;              Transformers &amp;&amp; ... transform_ops) </div><div class="line"><a name="l00406"></a><span class="lineno">  406</span>&#160;{</div><div class="line"><a name="l00407"></a><span class="lineno">  407</span>&#160;  <span class="keyword">using namespace </span><a class="code" href="namespacestd.html">std</a>;</div><div class="line"><a name="l00408"></a><span class="lineno">  408</span>&#160;</div><div class="line"><a name="l00409"></a><span class="lineno">  409</span>&#160;  <span class="keyword">using</span> result_type = <span class="keyword">typename</span> result_of&lt;Generator()&gt;::type;</div><div class="line"><a name="l00410"></a><span class="lineno">  410</span>&#160;  <span class="keyword">auto</span> output_queue = ex.<a class="code" href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">make_queue</a>&lt;pair&lt;result_type,long&gt;&gt;(); </div><div class="line"><a name="l00411"></a><span class="lineno">  411</span>&#160;</div><div class="line"><a name="l00412"></a><span class="lineno">  412</span>&#160;<span class="preprocessor">  #pragma omp parallel</span></div><div class="line"><a name="l00413"></a><span class="lineno">  413</span>&#160;  {</div><div class="line"><a name="l00414"></a><span class="lineno">  414</span>&#160;<span class="preprocessor">    #pragma omp single nowait</span></div><div class="line"><a name="l00415"></a><span class="lineno">  415</span>&#160;    {</div><div class="line"><a name="l00416"></a><span class="lineno">  416</span>&#160;<span class="preprocessor">      #pragma omp task shared(generate_op,output_queue)</span></div><div class="line"><a name="l00417"></a><span class="lineno">  417</span>&#160;      {</div><div class="line"><a name="l00418"></a><span class="lineno">  418</span>&#160;        <span class="keywordtype">long</span> order = 0;</div><div class="line"><a name="l00419"></a><span class="lineno">  419</span>&#160;        <span class="keywordflow">for</span> (;;) {</div><div class="line"><a name="l00420"></a><span class="lineno">  420</span>&#160;          <span class="keyword">auto</span> item = generate_op();</div><div class="line"><a name="l00421"></a><span class="lineno">  421</span>&#160;          output_queue.push(make_pair(item,order++)) ;</div><div class="line"><a name="l00422"></a><span class="lineno">  422</span>&#160;          <span class="keywordflow">if</span> (!item) <span class="keywordflow">break</span>;</div><div class="line"><a name="l00423"></a><span class="lineno">  423</span>&#160;        }</div><div class="line"><a name="l00424"></a><span class="lineno">  424</span>&#160;      }</div><div class="line"><a name="l00425"></a><span class="lineno">  425</span>&#160;      <a class="code" href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">pipeline_impl</a>(ex, output_queue,</div><div class="line"><a name="l00426"></a><span class="lineno">  426</span>&#160;          forward&lt;Transformers&gt;(transform_ops)...);</div><div class="line"><a name="l00427"></a><span class="lineno">  427</span>&#160;<span class="preprocessor">      #pragma omp taskwait</span></div><div class="line"><a name="l00428"></a><span class="lineno">  428</span>&#160;    }</div><div class="line"><a name="l00429"></a><span class="lineno">  429</span>&#160;  }</div><div class="line"><a name="l00430"></a><span class="lineno">  430</span>&#160;}</div><div class="line"><a name="l00431"></a><span class="lineno">  431</span>&#160;</div><div class="line"><a name="l00437"></a><span class="lineno">  437</span>&#160;}</div><div class="line"><a name="l00438"></a><span class="lineno">  438</span>&#160;</div><div class="line"><a name="l00439"></a><span class="lineno">  439</span>&#160;<span class="preprocessor">#endif</span></div><div class="line"><a name="l00440"></a><span class="lineno">  440</span>&#160;</div><div class="line"><a name="l00441"></a><span class="lineno">  441</span>&#160;<span class="preprocessor">#endif</span></div><div class="ttc" id="namespacegrppi_html"><div class="ttname"><a href="namespacegrppi.html">grppi</a></div><div class="ttdef"><b>Definition:</b> callable_traits.h:24</div></div>
<div class="ttc" id="namespacegrppi_html_a73e2c34e989166559e6e65b7a2bf100d"><div class="ttname"><a href="namespacegrppi.html#a73e2c34e989166559e6e65b7a2bf100d">grppi::pipeline_impl_ordered</a></div><div class="ttdeci">void pipeline_impl_ordered(parallel_execution_native &amp;ex, InQueue &amp;input_queue, reduction_info&lt; parallel_execution_native, Combiner, Identity &gt; &amp;&amp;reduction_obj, MoreTransformers...more_transform_ops)</div><div class="ttdef"><b>Definition:</b> native/pipeline.h:171</div></div>
<div class="ttc" id="classgrppi_1_1filter__info_html"><div class="ttname"><a href="classgrppi_1_1filter__info.html">grppi::filter_info</a></div><div class="ttdef"><b>Definition:</b> patterns.h:61</div></div>
<div class="ttc" id="classgrppi_1_1reduction__info_html"><div class="ttname"><a href="classgrppi_1_1reduction__info.html">grppi::reduction_info</a></div><div class="ttdef"><b>Definition:</b> patterns.h:38</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__omp_html_a56aa718f05d304ab46d1262f374fa934"><div class="ttname"><a href="classgrppi_1_1parallel__execution__omp.html#a56aa718f05d304ab46d1262f374fa934">grppi::parallel_execution_omp::is_ordered</a></div><div class="ttdeci">bool is_ordered() const noexcept</div><div class="ttdoc">Is execution ordered. </div><div class="ttdef"><b>Definition:</b> parallel_execution_omp.h:102</div></div>
<div class="ttc" id="namespacegrppi_html_aecef6e7d3973be5c5678422b30dba5ce"><div class="ttname"><a href="namespacegrppi.html#aecef6e7d3973be5c5678422b30dba5ce">grppi::requires_no_arguments</a></div><div class="ttdeci">typename std::enable_if_t&lt;!internal::has_arguments&lt; F &gt;(), int &gt; requires_no_arguments</div><div class="ttdef"><b>Definition:</b> callable_traits.h:86</div></div>
<div class="ttc" id="namespacestd_html"><div class="ttname"><a href="namespacestd.html">std</a></div><div class="ttdoc">STL namespace. </div></div>
<div class="ttc" id="namespacegrppi_html_aafdd79389d86c8837428498b46a52a11"><div class="ttname"><a href="namespacegrppi.html#aafdd79389d86c8837428498b46a52a11">grppi::pipeline_impl</a></div><div class="ttdeci">void pipeline_impl(parallel_execution_native &amp;ex, InQueue &amp;input_queue, Consumer &amp;&amp;consume)</div><div class="ttdef"><b>Definition:</b> native/pipeline.h:98</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__omp_html_a37f6a3c52b01c8086cf7406daeb11a01"><div class="ttname"><a href="classgrppi_1_1parallel__execution__omp.html#a37f6a3c52b01c8086cf7406daeb11a01">grppi::parallel_execution_omp::make_queue</a></div><div class="ttdeci">mpmc_queue&lt; T &gt; make_queue() const </div><div class="ttdoc">Makes a communication queue for elements of type T. </div><div class="ttdef"><b>Definition:</b> parallel_execution_omp.h:119</div></div>
<div class="ttc" id="group__pipeline__pattern__native_html_ga50396cad2879f1facd37757ea3aa564b"><div class="ttname"><a href="group__pipeline__pattern__native.html#ga50396cad2879f1facd37757ea3aa564b">grppi::pipeline</a></div><div class="ttdeci">void pipeline(parallel_execution_native &amp;ex, Generator &amp;&amp;generate_op, Transformers &amp;&amp;...transform_ops)</div><div class="ttdoc">Invoke Pipeline pattern on a data stream with native parallel execution. </div><div class="ttdef"><b>Definition:</b> native/pipeline.h:500</div></div>
<div class="ttc" id="classgrppi_1_1parallel__execution__omp_html"><div class="ttname"><a href="classgrppi_1_1parallel__execution__omp.html">grppi::parallel_execution_omp</a></div><div class="ttdoc">OpenMP parallel execution policy. </div><div class="ttdef"><b>Definition:</b> parallel_execution_omp.h:40</div></div>
<div class="ttc" id="parallel__execution__omp_8h_html"><div class="ttname"><a href="parallel__execution__omp_8h.html">parallel_execution_omp.h</a></div></div>
<div class="ttc" id="namespacegrppi_html_a4a3adea4a352869567cc47b78cd96a46"><div class="ttname"><a href="namespacegrppi.html#a4a3adea4a352869567cc47b78cd96a46">grppi::pipeline_impl_unordered</a></div><div class="ttdeci">void pipeline_impl_unordered(parallel_execution_native &amp;ex, InQueue &amp;input_queue, filter_info&lt; parallel_execution_native, Transformer &gt; &amp;&amp;filter_obj, MoreTransformers &amp;&amp;...more_transform_ops)</div><div class="ttdef"><b>Definition:</b> native/pipeline.h:327</div></div>
<div class="ttc" id="classgrppi_1_1farm__info_html"><div class="ttname"><a href="classgrppi_1_1farm__info.html">grppi::farm_info</a></div><div class="ttdef"><b>Definition:</b> patterns.h:51</div></div>
<div class="ttc" id="group__reduce__pattern__native_html_gad3a9dc3cdb2b5165d1cc201eb0da4383"><div class="ttname"><a href="group__reduce__pattern__native.html#gad3a9dc3cdb2b5165d1cc201eb0da4383">grppi::reduce</a></div><div class="ttdeci">auto reduce(parallel_execution_native &amp;ex, InputIt first, InputIt last, Identity identity, Combiner &amp;&amp;combine_op)</div><div class="ttdoc">Invoke Reduce pattern with identity value on a data sequence with parallel native execution...</div><div class="ttdef"><b>Definition:</b> native/reduce.h:51</div></div>
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